Children with depression have a typical persistent depressed mood and may have suicidal and self-harming behavior in severe cases. Therefore, when communicating with him, pay attention to observe his speech and mannerisms and cultivate more interests and hobbies as follows: 1. Observe his speech and mannerisms: Pay special attention when talking about topics such as self-harm and self-injury. Through facial expressions or words, see if there is a tendency or behavior of self-harm or suicide. If you find a similar negative concept, you must pay enough attention and go to the hospital in time to see a doctor for follow-up and receive professional evaluation to avoid accidents.2. Cultivate interests and hobbies: When communicating with a depressed child, you must consider his feelings and try to persuade him to communicate more with people and find his own favorite interests and hobbies, so that his attention can be shifted to them. You can also encourage him to do more physical exercise, try to participate in more group activities, or develop hobbies such as writing a diary or keeping pets, which can help improve depression and anxiety.